http_equiv_accept_ch_with_iframe.html

<html>
<link rel="icon" href="data:;base64,=">
<head></head>
Empty file which uses link-rel to disable favicon fetches. The corresponding
.mock-http-headers sets client hints.
<iframe src="http_equiv_accept_ch.html"></iframe>
</html>

chromium/chrome/test/data/client_hints/http_equiv_accept_ch_with_iframe.html